Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5356259 | Apparatus for controlling hydraulic cylinders of a power shovel | Shinji Takasugi | 1994-10-18 |
| 5312163 | System for aiding operation of excavating type underground advancing machine | Norio Takahashi | 1994-05-17 |